You use saber to describe a fact, information, or how to do something.
And you use conocer to say that you are familiar with something either a person, place, or thing.
Basically saber means to know of something, and conocer means to be familiar with someting.
1 D
2 A
3 B
4 E
5 C
I hope this helps
Viajan should be the answer
The History of Mexico (La Historia de Mexico) was Diego Rivera's most famous fresco (mural) in the National Palace, I believe. I think that work is what this is referring to.
